<!DOCTYPE html>
<html style="height:100%" lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        * {
            padding: 0px;
            margin: 0px;
        }

        .p1 {
            background: url(img/banner_pc.jpg) no-repeat 0 0/100% 100%;
        }

        .star1 {
            animation: move1 5s infinite  forwards;
        }

        .star {
            width: 108px;
            height: 160px;
            background: url(img/star.png);
            position: absolute;
            left:0px;
            top: 0px;
        }

        @keyframes move1 {
            from {
                top: -100px;
                left: 100px;
                opacity: 1;
            }

            to {
                top: 300px;
                left: 0px;
                opacity: 0;
            }

        }

        .watch {
            width: 400px;
            height: 400px;
            position: absolute;
            left: calc(50% - 500px);
            top: calc(50% - 200px);
            background: url(img/watch_bg.png) 0 0/ 100% 100%
        }

        .zhen{
            width: 131px;
            height: 105px;
            position: absolute;
            left: calc(50% - 20px);
            top: calc(50% - 20px);
            transition: 1s;
            transform-origin: 24px 24px;
            transform: rotate(-250deg);
            background: url(img/img_index.png) -448px -823px;
            animation: zqq 2s forwards infinite ease-in-out;
        }
        @keyframes zqq{
            from {
                transform: rotate(-250deg);
            }
            to {
                transform: rotate(1deg);
            }
        }
    </style>
</head>

<body style="height:100%">
    <div class="p1" style="height:100%">
        <div class="star star1"></div>
        
       
        <div class="watch">
            <div class="zhen">

            </div>
        </div>
    </div>

</body>

</html>